Ice-cream freezer



E. BLASSER.

ICE CREAM FREEZER.

APPLICATION FILED IAN. I0. 1918.

1,374,350, Patented Apr. 12, 1921.

2 SHEETS-SHEET E. BLASSER. ICE CREAM FREEZVER.

APPLICATION FILEDl 14N. 10, 1918- 2 SHEETS-SHEET 2.

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UNITED STATES @ATENE OFFICE.

ERNEST BLASSER, OF ALLSTON, MASSACHUSETTS, SSG-NOR OF ONE-HALF 'IO GEORGE I. CLAYTON, OF BOSTON, MASSACHUSETTS.

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Specification of Letters Patent.

Patented Apr. 12, 1921.

Application filed January 10, 1918. Serial No. 211,281.

To all whom z' 'may concern:

Be it known that I, ERNEST BLAssnn, a citizen of the United States of America, and resident of Allston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Ice-Cream Freezers, of which the following is a specification.

rlhis invention relates to ice cream freezers and the like of a new anduseful construction employing principles not heretofore known inthe art. The invention in its various elements utilizes new features and functions, rendering it more efficient and rapid for freezing liquid substances. Its operation and use are applicable to both hand power and motive power driven machines. In addition every element or part entering into the construction thereof is readily accessible for cleaning, repairing, or is easily renewable with like interchangeable parts without discarding associated or coacting parts.

In order to illustrate the invention, I have shown in the accompanying drawing but one embodiment thereof, wherein:

Figure 1 is a central, vertical section through a freezer embodying the invention.

Fig. 2 is a detail of the base Or clamping device arranged in a different manner than that shown on the frame in Fig. 1.

Fig. 3 is a detail plan of the swiveled head utilized for alining the parts and for holding certain parts stationary.

Fig. 1 is a horizontal section on line l-fl on Fig. 1.

Fig. 5 is a horizontal section on linev 5 5 on Fig. 1.

Fig. 6 is an inverted horizontal section on line 6-6 on Fig. 1.

The terms employed herein are used in the generic and descriptive-sense to designate elements and parts, and are therefore not intended as terms of limitation.

In the drawing 10 represents a suitable frame standard, or the like, having at the bottom thereof suitable provision for holding the same upright upon a suitable or preferred base or other foundation. Herein said provision consists of a clamping device or'bracket 11 of U or channel shape construction, with one side screwed at 12 to the frame 10 as in Fig. 1 and with the clamp screw 13 in position to enable the entire apparatus tobe affixed or clamped to the edge of a table, bench or the like. Said bracket 11 is detachable by removal of the screw 14 and capable of being re-positioned on the frame 10 by placing the screws in the screw holes 15 at the end thereof and tightening the same as in Fig. 2. Vhen in this position, the said bracket 11 may be secured to. a board7 or other foundation, placed edgewise and then screwing the clamp screw 13 thereto.

Extending from the kfront of the frame 10 is a vertical bearing 17 adapted to receive therein the tubular shaft 18 on a rotatable spider 19 having radial arms 20 and a bevelgear 2l beneath the same to engage or mesh with the bevel driving gear 22. Said bevelgear 22 is rotated by the shaft 23 secured thereto and rotatable in the bearings 241 and 25 on the frame 10. A crank arm 27 having a handle 28, as shown in Fig. 1, may be employed to rotate the shaft 23 or a pulley, gear or other ,driving or powenapplying means may be secured to the said shaft for rotating the same. A retaining or thrust collar 29 secured to the lower end of said tubular shaft 13 and engaging the lower vface of the bearing 17, serves to maintain the said shaft in position with said gears constantly in mesh.

The radial arms 2O are provided with radial slots 30 adapted to receive therein the studs 31 secured to the bottom of thereceptacle 32 adapted to contain the freezing compound or mixture usually composed of pieces of ice mixed with salt. Said receptacle 32 rests on the arms 2O and is adapted to be driven thereby when the spider 19 is rotated. The receptacle 32 is shown as cylindrical and extends to a -suflicient height to practically inclose the container 33 hereinafter described.

Near the top of the said receptacle 32 is 'an overflow or drain orifice 34 at a point just below the top of the container 33, so that water or brine resulting from the mixture of the ice and salt as the former melts, will not overow or run into the said container. Surrounding the orifice 34 at the outside of the receptacle 32 is a cup-like member 35 terminating in an overflow pipe 36 extending downward along the side of thev receptacle to a point below the bottom thereof where it is inturned at 37 to provide secured to the bottom of the container 33 to permit of relative rotation between the same and to support saidy receptacle 32. The container 33 is adapted to receive or contain therein the liquid to be frozen or converted into an ice ice cream or the like. Therefore, it is provided at the top withY a cover 46 with a central collar or iiange 47 through which is projected the tubular stern 48 of the beater 49. The said tubular stem 48 bears on the pintle 50 interiorly of the receptacle, and extends through said flange 47 above which said tubular stem is provided with a square portion 51 fitting into the square hole 52 through the bracket 53, as shown in Figs. 1 and 4. Said bracket has its ends 54 bent downwardly at right angles thereto and engage the sockets 55 at each side of the receptacle 32.

Centrally of the tubular stem 48 is a nonrotatable shaft 57 having at the bottom thereof a flattened projection 58 to engage with a correspondingly shaped slot 59 cut across the top of the pintle 50. Said shaft 57 is prevented from rotating by the tapering square portion 60 at the top thereof engaged by the boundary of the square orifice 61 through the end 62 of the swinging head or arm 63`pivoted and clamped at 64 to the top of the frame 10. The said arm 63 and frame 10 are correspondingly serrated or notched at 65 and are normally held in relative position by said serrations and the clamp screw 66.

The application and operation of the specific embodiment of the invention is as follows: Y

- The bracket 11 is clamped to a foundation and the receptacle 32 is placed on the spider 19 with the studs 31 engaging the radial slots 30. The liquid to be frozen is poured into the container 33 andthe beater 49 is placed therein with the lower endV of the same resting and bearing on the pintle 50. The cover 46 is now positioned on the said container 33 with the square portion 51 of the tubular stem 48 projecting therethrough. The bracket 53 is now positioned with the walls of the square hole 52 engaging the square portion 51 and the ends 54 are inserted into the sockets 55. Ice and salt may now be packed into the receptacle 32 to a point close to the top of the container The non-rotatable shaft y57 is placed into thetubular stem 48 with the iiattened projection 58 engaging with the slot 59at the end of the pintle 50. The arm 63 is swung into position when the boundary walls of the square orifice 61 will engage the square portion 60 on said shaft. The clamp screw 66 is tightened, bringing the serrations at 65 into locking engagement, and the apparatus is now ready for use.

The operator grabs the handle 28 and by turning or rotating the crank arm 27 Vrotates the shaft 23 and bevel driving gear 2,2, the bevel-gear 21 and spider 19, thereby rotating the receptacle 32. As the latter rotates the bracket 53 rotates driving the beater` 49 to stir orrbeat the liquid to` be frozen. vThe non-rotatable shaft 57 being held stationary by the arm 63 and locking the pintle 50 thereto, prevents the receptacle 32 from rotating. Y

The ice within the receptacle 32tends, by the centrifugal action when rotating, to pack against the walls of the same, leaving the lighter, finer l'particles of ice, massed in great bulk, in contact with the container 33. rThis action presents a greater density of ice particles to the container', permits of greater ease of operation of the entire apparatus without the container forcing the ice away therefrom forming a clearance thereaboutV and induces quicker results in the use of the device. M

The brine as a product of the ice and salt, will rise until it reaches the orifice 34, after which it will overiiow into the pipe 36 to of my invention, but'it is to be understood that the latter is not essentially-limited to the specific construction and organization of said embodiment, sincethe saine may be varied without departing from the proper scope of the claims.

Having thus described my invention in` detail, what I claim as new is:

1. 1n a. device of the character described a rotatable outer receptacle, a stationary inner container housed in said outer receptacle and spaced therefrom, a beater rotatably mounted in said inner container, means for engaging said beater with said outer receptacle to rot-ate therewith, means for rotatably supporting said outer receptacle and said beater and for holding said inner container against rotation, and means for rotating said outer receptacle with said beater.

2. In a device of the character described, a pair of receptacles one inclosing the other and spaced therefrom, a beater in the interior receptacle, a driving means axially of the outer receptacle to impart rotation thereto and to the beater therewith, and means for rotatably supporting said outer receptacle and beater and for holding said inner receptacle stationary and against rotation.

8. In a device of the character described, a pair of receptacles one inclosing the other and spaced therefrom, a beater in the interior receptacle, a driving means axially of the outer receptacle to impart rotation thereto and to the beater, said driving means having provision of means for discharging brine from the outer receptacle centrally thereof, and means for holding said interior receptacle stationary within said outer receptacle during the rotations of the latter.

4. In a device of the character described, a rotatable outer receptacle having a stationary inner container therein, a rotatable beater in said inner container, means engaging said outer receptacle withV said beater for rotating the latter with the former, and means for supporting the aforesaid elements in operating position with each other.

5. In a device of the character described, a rotatable outer receptacle having a stationary inner container therein, a rotatable beater in said inner container, means engaging said outer receptacle with said beater for rotating the latter with the former, and means for supporting the aforesaid elements in operating position with each other, and means for rotating said rotatable receptacle and said rotatable beater.

6. In a device of the character described, a pair of receptacles comprising an outer rotatable one inclosing the other which is held stationary therein and spaced therefrom, a rotatable beater in the interior receptacle coupled with and adapted to rotate with said outer receptacle, a driving means axially of the outer receptacle to impart rotation to said outer receptacle and said beater, said driving means having provision of means for discharging brine from the outer receptacle centrally thereof, and means supporting the driving means and for securing the apparatus to a foundation.

7. In a device of the character described, a rotatable outer receptacle having an overiiow drain connection leading to the center of the bottom thereof, a stationary inner container housed in said outer receptacle and spaced therefrom, a beater within said inner container rotatably mounted therein, means for engaging said beater with said outer receptacle for rotating therewith, means for rotatably supporting said outer receptacle and said beater and for holding said inner container stationary inrelation said outer receptacleA overflow.

8. :In a device.V of thecharacter described, a frame having a vertical bearing at the bottom and an adjustable supporting and locking head at the top thereof, a spider having a tubular shaftV rotatable in said bearing and provided with a driving gear above the latter, means for rotating said driving gear and spider, an outer receptacle having means to engage said spider to rotate therewith and provided with a brine overflow discharge pipe communicating with the bore of the tubular shaft, a stationary container within said outer receptacle and spaced therefrom, provided with means for locking the saine with said locking head of said frame member, and a rotatable beater mounted within said stationary container and provided with coupling means connecting said beater with the outer receptacle for rotating therewith.

9. In a device of the character described, a frame having a vertical bearing at the bottom and a swinging supporting head at the top thereof, a spider having a tubular shaft rotatable in said bearing and provided with a driving gear above the latter, means for rotating said driving gear and spider, an outer rotatable receptacle having means to engage said spider for rotating the same with said spider and provided with a brine discharge pipe communicating with the bore of the tubular shaft, a stationary container within said receptacle and spaced therefrom, a beater rotatable within said container and rotatable by means connected with the outer receptacle, ka connecting means detachable from said swinging head and cooperating with the inner container for holding the latter stationary, and clamping means provided on said frame for securing the latter to the supporting object.

10. In a device of the character described, a supporting frame having means for detachably attaching same to a supporting object and an adjustable centralizing head, a rotatably supporting spider, rotatably mounted in said supporting frame and provided with an axially disposed discharge conduit therethrough; means supported in said frame member adapted to operate said spider member; an outer casing adapted to be detachably secured to said supporting spider for rotating therewith and provided with an overflow drain leading to said discharge conduit of said spider member, a detachable locking bar positioned across the open end thereof, and a supporting lug within said container and at the bottom thereof; an inner casing mounted centrally within said outer easing on said supporting lug and provlded wlth a loeklng` spmdle locked Within said eentralizng head and adapted to hold said inner easing stationary With said supporting frame; and a rotatable beater member nelosed Within said inner easing and locked with said detachable locking bar of said outer casing for causing said beater member to rotate With said outer member. Y v l0 In testimony whereof I hereunto Set my hand this third day of January, 1918.

ERNEST BLASSER. 

